Telephone desk set



Patented June 21, 1921.

I 77/ ,QIJ 27/1 P. C. BURNS. TELEPHONE DESK SET. APPLlCATlON FILED JUNE 16. 1920. 1 ,'381,9Q3 Patented June 21, 1921.

2 SljEETS-SHEET 2- f q 30 29 l 30 UNITED STATES PATENT PETER C. BURNS, OF CHICAGO, ILLINOIS, ASSIGNOR TO AMERICAN ELECTRIC CO.,

CHICAGO, ILLINOIS, A. CORPORATIQN OF ILLINOIS.

TELEPHONE DESK SET.

telephone desk sets and has for its object the provision of a very simple and efficient construction for desk telephones, and one which can be easily and quickly assembled and can also be readily disassembled in order to permit replacement or repairing of the various parts- Further features of my invention consist in an improved rubber ring secured to the base to act as a cushion or buffer and to an improved manner of holding this ring in place whereby it can .be removed without necessitating the removal ofany rivets or other similar fastening means.

These and other features and objects of my invention will be more readily understood by having reference to the accompanying drawings in which I have illustrated certain embodiments of-my invention.

Figure 1 is a side elevation, partly in section, of a desk set embodying the features of my invention.

Fig. 2 is a bottom view of the same with parts broken away in order to show the interior arrangement.

Fi 3 is a sectional view. through the base, showlng a modified form of the means for holding the rubber ring in position.

Asillustrated, my improved desk set consists essentially of a hollow base '5 extending upwardly from which is a tubular member 6 which fits over a suitable boss or protuberance 7 on the base 5, which tubular member is preferably offset from the center of the base in order to provide increased space for the mounting of a suitable automatic calling device (not shown). The upper end of this tubular member bears beneath shoulders 8 of the head 9-which carries the transmitter 10. Thi's'head 9 is supported on the upper end of a supporting bar 11 which extends downward through the tubular member 6 and is provided at its lower end with an offset extension 12 which rests upon the boss or protuberance? of the base 5. Mounted within the base 5 there is iadactioa sail carried by the bracket Specification of Letters Patent.

Application flied June 16, 1920. Serial No 389,269.

14, which bracket is provided with a horizontal extension 15 which carries the terminal block 16. There is likewise provided a suitable base plate 17. In order to fasten the supporting bar 11 to the base and to hold the induction coil and terminal block in position, as well as to hold the base plate in place, I provldo a single bolt 18, provided with an upper threaded end 19 which proe'cts through openings in the boss 7 .of the base 5 and the offset end 12 of the supporting and 11. This bolt 18 likewise passes through an opening in the terminal block,

which block is spaced apart from the upper portion of the base by means of the collar 20 on the bolt 18. The lower end of this bolt 18 is provided with a threaded bore for the reception of the screw 21 which passes through an opening in the base plate 17 and operates to secure the base plate in pos1t1on. Adjacent to the collar 20 there is a post 22 secured'to the base 5 by means of a screw 23, which post is bored out at its lower end so as to'receive a screw 24 which passes through the extension 15 of the bracket and through the terminal block 16 and operates to firmly hold these members in osition upon the bolt 18.

urrounding the lower marginal ed e of the base 5, there is a rubber ring 25 which is provided with an offset extension 26 around .its lower edge, which extension projects bewise, by having the rubber ring extended in this manner, it operates as a more eflicient protect10n when the desk set is :stood upon one edge, as is often the case when the desk set is being used by a subscriber. This rubber ring is held in position without the use of any rivets or. other similar attaching means, so that the ring may be readily removed. In Fig. 1, I have shown this ring as bein held in place by means of the base plate 1 which is provided with an inwardly extending marginal flange 27 which bears against the inwardly extending flange 28 formed around the upper edge of the rubber ring 25. With this construction,

provided with an upwardly extending portion 30 which is clamped between the shell 29 and the outer shell 5 of the base, and thus firmly held in position.

It will thus be seen that I have devised a very, efficient and simple form of desk set, and while I have illustrated and described certain specific embodiments of the same, it will be understood that I do not wish to be limited to the exact construction shown and described, but thatvarious changes and modifications may be made without departing from the spirit and intent of my invention.

What I claim as my invention is:

1. In a telephone desk set, a hollow base, a supporting member extending upwardly from said base, an induction coil within said base, a bracket for supporting said induction coil and provided with a lateral extension a terminal block mounted upon said extension, and a bolt passing through said bracket and terminal block, saidbolt being provided with a threaded end ortion extending through the upper portion of said base and through. the lower end of said supporting member.

2. In a telephone desk set, a hollow base,

- a tubular member extending upwardly therefrom, a supporting rod mounted within said tubular member and having a latera l extension resting on said base, an induction coilin said base, a bracket for supporting said induction coil and provided with a lateral extension, a terminal block mounted upon said lateral extension, and a bolt passing through said bracket and terminal'bloc'k to osition the same within said base, said bolt being provided with a threaded end portion extending throughthe upper portion of said base and through said lateral extension. of said supporting rod to thereby secure said supporting rod to said base.

3. In a telephone desk set, a hollow base, a tubular member extending upwardly therefrom, a supporting rod mounted within said tubular member and having a lateral. extension resting on said base, an induction coil in said base, a bracket for supportin said induction coil and provided with a teral extension, a terminal block mounted upon said lateral extension, a bolt assing through said bracket and terminal b ock to osition the same within said base, said bo t being provided with a threaded end portion ex- 4. In a telephone desk set, a hollow base,

a tubular member "mounted upon said base and extending upwardly; therefrom, a supporting rod mounted within said tubular member and provided with a lateral extension at the lower end thereof resting upon said base, an induction coil .and terminal block within said base, a single bracket for supporting said induction coil and terminal block, a base plate, and means for securing said parts together, said means consisting of a bolt passing through said bracket and terminal block and provided with a threaded end portion engaging with said extension of said supporting rod to thereby secure the same to said base, said bolt being provided with a collar for positioning said terminal block a suitable distance from the upper portion of-said base, and a screw engaging within the lower end of said bolt and passing through said base plate to thereby hold said base plate in position.

5. In a telephone desk set, a hollow base,

a tubular member mounted upon said base and extending upwardly therefrom, a supporting rod mounted within said tubular memberand provided with a lateral extension at the lower end thereof resting upon said base, an induction coil and terminal block within said base, a bracket for supporting said induction coil and terminal block, a base plate and means for securing said parts together, said means consisting of a bolt passing through said bracket and terminal block and provided with a threaded end portion engaging with said extension of said supporting rod to thereby secure the same to said base, said bolt being provided with a collar for positioningsaid terminal .block a suitable distance from the upper portion of said base, and a screw engaging within the lower end of said bolt and passing through said base plate to thereby hold said base late in position, a hollow post secured to sand base plate and adjacent to said bolt, and a screw passing through said bracket and terminal strip and en aging in said hollow post for holding said racket and terminal block in position upon said bolt.

. 6. In atelephone desk set, a hollow base,

a supporting'member extending upwardly from said base, a bolt for securing said supportin member to saidbase, the lower end of sai bolt being provided with an interiorly threaded bore, a suitable ring surl0 bolt for holding the base plate in position.

rounding the lower marginal edges of said base and provided with a lateral extension extending below and slightly beyond the lower edge of said base, said ring being provided with an inwardly extending marginal flange around its upper edge, a base plate engaging against said inwardly extending flange for holdingl said ring in position; and a screw passing t engaging withm the threaded bore of said 7 In a telephone desk set, a hollow base,

I a ring surrounding the lower marginal edges rough said base plate and' tension extending below and slightly beyond,

the lower edge of said base, said ring being provided with an inwardly extending marginal flange around its upper edge, a base plate en aging against said inwardly extending ange for holding said ring in position, and means for holding the base plate in osition.

igned b me at Chicago, Illinois, this 9th day of une, 1920.

PETER or BURNS. 

